Re: fixed block size


"JimWagle" <nospam@xxxxxxxxxxxx> wrote in message
news:46316402$0$97262$892e7fe2@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
If you are encrypting each block with the same key it is.
But most encrypt at a higher level over long lengths, some continuously,
and then the encrypted data is then broken into blocks for shipping out.

the first of two keys is as long as the padded message, but it is not a OTP.
the second of two keys is only as long as the block and is always unique in
the sequence although it may not be unique between sequences. in other
words, the master key is as long as the padded message and then a set of sub
keys are used for each block contained within the length of the padded
message, so message one will have a unique master key and a set of sub keys,
message two will have a different unique master key but some of the sub keys
for message two may be the same as some of the sub keys for message one and
possibly in the same location within the sequence although that is unlikely
to occur.


.

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